[#27380] [Bug #2553] Fix pthreads slowness by eliminating unnecessary sigprocmask calls — Dan Peterson <redmine@...>

Bug #2553: Fix pthreads slowness by eliminating unnecessary sigprocmask calls

21 messages 2010/01/03

[#27437] [Feature #2561] 1.8.7 Patch reduces time cost of Rational operations by 50%. — Kurt Stephens <redmine@...>

Feature #2561: 1.8.7 Patch reduces time cost of Rational operations by 50%.

9 messages 2010/01/06

[#27447] [Bug #2564] [patch] re-initialize timer_thread_{lock,cond} after fork — Aliaksey Kandratsenka <redmine@...>

Bug #2564: [patch] re-initialize timer_thread_{lock,cond} after fork

18 messages 2010/01/06

[#27545] [Feature #2594] 1.8.7 Patch: Reduce time spent in gc.c is_pointer_to_heap(). — Kurt Stephens <redmine@...>

Feature #2594: 1.8.7 Patch: Reduce time spent in gc.c is_pointer_to_heap().

8 messages 2010/01/11

[#27635] [Bug #2619] Proposed method: Process.fork_supported? — Hongli Lai <redmine@...>

Bug #2619: Proposed method: Process.fork_supported?

45 messages 2010/01/20
[#27643] [Feature #2619] Proposed method: Process.fork_supported? — Luis Lavena <redmine@...> 2010/01/21

Issue #2619 has been updated by Luis Lavena.

[#27678] Re: [Feature #2619] Proposed method: Process.fork_supported? — Yukihiro Matsumoto <matz@...> 2010/01/22

Hi,

[#27684] Re: [Feature #2619] Proposed method: Process.fork_supported? — Charles Oliver Nutter <headius@...> 2010/01/22

On Thu, Jan 21, 2010 at 11:27 PM, Yukihiro Matsumoto <matz@ruby-lang.org> wrote:

[#27708] Re: [Feature #2619] Proposed method: Process.fork_supported? — Yukihiro Matsumoto <matz@...> 2010/01/22

Hi,

[#27646] Re: [Bug #2619] Proposed method: Process.fork_supported? — Tanaka Akira <akr@...> 2010/01/21

2010/1/21 Hongli Lai <redmine@ruby-lang.org>:

[#27652] Re: [Bug #2619] Proposed method: Process.fork_supported? — Hongli Lai <hongli@...99.net> 2010/01/21

On 1/21/10 5:20 AM, Tanaka Akira wrote:

[#27653] Re: [Bug #2619] Proposed method: Process.fork_supported? — Tanaka Akira <akr@...> 2010/01/21

2010/1/21 Hongli Lai <hongli@plan99.net>:

[#27662] Re: [Bug #2619] Proposed method: Process.fork_supported? — Vladimir Sizikov <vsizikov@...> 2010/01/21

On Thu, Jan 21, 2010 at 10:53 AM, Tanaka Akira <akr@fsij.org> wrote:

[#27698] [Bug #2629] ConditionVariable#wait(mutex, timeout) should return whether the condition was signalled, not the waited time — Hongli Lai <redmine@...>

Bug #2629: ConditionVariable#wait(mutex, timeout) should return whether the condition was signalled, not the waited time

8 messages 2010/01/22

[#27722] [Feature #2635] Unbundle rdoc — Yui NARUSE <redmine@...>

Feature #2635: Unbundle rdoc

14 messages 2010/01/23

[#27757] [Bug #2638] ruby-1.9.1-p37[68] build on aix5.3 with gcc-4.2 failed to run for me because it ignores where libgcc is located. — Joel Soete <redmine@...>

Bug #2638: ruby-1.9.1-p37[68] build on aix5.3 with gcc-4.2 failed to run for me because it ignores where libgcc is located.

10 messages 2010/01/24

[#27778] [Bug #2641] Seg fault running miniruby during ruby build on Haiku — Alexander von Gluck <redmine@...>

Bug #2641: Seg fault running miniruby during ruby build on Haiku

10 messages 2010/01/25

[#27791] [Bug #2644] memory over-allocation with regexp — Greg Hazel <redmine@...>

Bug #2644: memory over-allocation with regexp

12 messages 2010/01/25

[#27794] [Bug #2647] Lack of testing for String#split — Hugh Sasse <redmine@...>

Bug #2647: Lack of testing for String#split

14 messages 2010/01/25

[#27912] [Bug #2669] mkmf find_executable doesn't find .bat files — Roger Pack <redmine@...>

Bug #2669: mkmf find_executable doesn't find .bat files

11 messages 2010/01/27

[#27930] [Bug:trunk] some behavior changes of lib/csv.rb between 1.8 and 1.9 — Yusuke ENDOH <mame@...>

Hi jeg2, or anyone who knows the implementation of FasterCSV,

15 messages 2010/01/28
[#27931] Re: [Bug:trunk] some behavior changes of lib/csv.rb between 1.8 and 1.9 — James Edward Gray II <james@...> 2010/01/28

On Jan 28, 2010, at 10:51 AM, Yusuke ENDOH wrote:

[ruby-core:27416] [Bug #2558] r24591 causes Segfault

From: Alex Legler <redmine@...>
Date: 2010-01-05 09:29:05 UTC
List: ruby-core #27416
Bug #2558: r24591 causes Segfault
http://redmine.ruby-lang.org/issues/show/2558

Author: Alex Legler
Status: Open, Priority: Normal
ruby -v: ruby 1.9.1p376 (2009-12-07 revision 26041) [x86_64-linux]

While looking into a test failure in test_thread.rb (ticket #2506), I stumbled upon a segmentation fault that was randomly happening.

To reproduce, run `make test', or the extracted sample (attached) while redirecting output. i.e. `./ruby19 ~/reprod.rb > /dev/null' multiple times, until randomly a segv occurs. 
The segfault only seems to occur on systems with a glibc >= 2.10, I reproduced it on Gentoo x86 with glibc 2.10 and amd64 with glibc 2.11.

I "bisected" my way through the changes between 1.9.1_p243 and 1.9.1_p376 and found that r24591 (applied in the 1_9_1 branch in r25539) is the cause. If I take a pristine p376 snapshot and just revert the aforementioned change, the issue goes away.

This is what the crash output looks like:

--
/home/alex/file.rb:114: [BUG] Segmentation fault
ruby 1.9.1p376 (2009-12-07 revision 26041) [x86_64-linux]

-- control frame ----------
c:0003 p:0000 s:0007 b:0007 l:001f88 d:000006 BLOCK  /home/alex/file.rb:114
c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH
c:0001 p:---- s:0002 b:0002 l:000001 d:000001 TOP   
---------------------------
-- Ruby level backtrace information-----------------------------------------
/home/alex/file.rb:114:in `block (2 levels) in <main>'

-- C level backtrace information -------------------------------------------
0x7f8e9a8443d1 ./libruby19.so.1.9(rb_vm_bugreport+0x51) [0x7f8e9a8443d1]
0x7f8e9a76caae ./libruby19.so.1.9(+0x50aae) [0x7f8e9a76caae]
0x7f8e9a76cc13 ./libruby19.so.1.9(rb_bug+0xb3) [0x7f8e9a76cc13]
0x7f8e9a7eebb5 ./libruby19.so.1.9(+0xd2bb5) [0x7f8e9a7eebb5]
0x7f8e9a50f010 /lib/libpthread.so.0(+0xf010) [0x7f8e9a50f010]
0x72e6e0 [0x72e6e0]

[NOTE]
You may encounter a bug of Ruby interpreter. Bug reports are welcome.
For details: http://www.ruby-lang.org/bugreport.html
--

Note that file.rb is what I attach as reprod.rb and does not have 114 lines!

Please also find more info from gdb attached.


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